Thermal Emissions Spanning the Prompt and the Afterglow Phase of the Ultra-long GRB 130925A

Rupal Basak, A. R. Rao

GRB 130925A is an ultra-long GRB, and it shows clear evidences for a thermal emission in the soft X-ray data of \emph{Swift}/XRT ($\sim 0.5$\,keV), lasting till the X-ray afterglow…